diff options
Diffstat (limited to 'fs/ext3/xattr_security.c')
-rw-r--r-- | fs/ext3/xattr_security.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/fs/ext3/xattr_security.c b/fs/ext3/xattr_security.c deleted file mode 100644 index c9506d5e3b13..000000000000 --- a/fs/ext3/xattr_security.c +++ /dev/null | |||
@@ -1,78 +0,0 @@ | |||
1 | /* | ||
2 | * linux/fs/ext3/xattr_security.c | ||
3 | * Handler for storing security labels as extended attributes. | ||
4 | */ | ||
5 | |||
6 | #include <linux/security.h> | ||
7 | #include "ext3.h" | ||
8 | #include "xattr.h" | ||
9 | |||
10 | static size_t | ||
11 | ext3_xattr_security_list(struct dentry *dentry, char *list, size_t list_size, | ||
12 | const char *name, size_t name_len, int type) | ||
13 | { | ||
14 | const size_t prefix_len = XATTR_SECURITY_PREFIX_LEN; | ||
15 | const size_t total_len = prefix_len + name_len + 1; | ||
16 | |||
17 | |||
18 | if (list && total_len <= list_size) { | ||
19 | memcpy(list, XATTR_SECURITY_PREFIX, prefix_len); | ||
20 | memcpy(list+prefix_len, name, name_len); | ||
21 | list[prefix_len + name_len] = '\0'; | ||
22 | } | ||
23 | return total_len; | ||
24 | } | ||
25 | |||
26 | static int | ||
27 | ext3_xattr_security_get(struct dentry *dentry, const char *name, | ||
28 | void *buffer, size_t size, int type) | ||
29 | { | ||
30 | if (strcmp(name, "") == 0) | ||
31 | return -EINVAL; | ||
32 | return ext3_xattr_get(d_inode(dentry), EXT3_XATTR_INDEX_SECURITY, | ||
33 | name, buffer, size); | ||
34 | } | ||
35 | |||
36 | static int | ||
37 | ext3_xattr_security_set(struct dentry *dentry, const char *name, | ||
38 | const void *value, size_t size, int flags, int type) | ||
39 | { | ||
40 | if (strcmp(name, "") == 0) | ||
41 | return -EINVAL; | ||
42 | return ext3_xattr_set(d_inode(dentry), EXT3_XATTR_INDEX_SECURITY, | ||
43 | name, value, size, flags); | ||
44 | } | ||
45 | |||
46 | static int ext3_initxattrs(struct inode *inode, | ||
47 | const struct xattr *xattr_array, | ||
48 | void *fs_info) | ||
49 | { | ||
50 | const struct xattr *xattr; | ||
51 | handle_t *handle = fs_info; | ||
52 | int err = 0; | ||
53 | |||
54 | for (xattr = xattr_array; xattr->name != NULL; xattr++) { | ||
55 | err = ext3_xattr_set_handle(handle, inode, | ||
56 | EXT3_XATTR_INDEX_SECURITY, | ||
57 | xattr->name, xattr->value, | ||
58 | xattr->value_len, 0); | ||
59 | if (err < 0) | ||
60 | break; | ||
61 | } | ||
62 | return err; | ||
63 | } | ||
64 | |||
65 | int | ||
66 | ext3_init_security(handle_t *handle, struct inode *inode, struct inode *dir, | ||
67 | const struct qstr *qstr) | ||
68 | { | ||
69 | return security_inode_init_security(inode, dir, qstr, | ||
70 | &ext3_initxattrs, handle); | ||
71 | } | ||
72 | |||
73 | const struct xattr_handler ext3_xattr_security_handler = { | ||
74 | .prefix = XATTR_SECURITY_PREFIX, | ||
75 | .list = ext3_xattr_security_list, | ||
76 | .get = ext3_xattr_security_get, | ||
77 | .set = ext3_xattr_security_set, | ||
78 | }; | ||